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Big Data Interview Questions
Questions Answers Views Company eMail

How can you use adminclient api?

 289

What is the difference between rdbms and hadoop?

 388

Define tasktracker.

 391

Is it necessary to write jobs for hadoop in the java language?

 409

Which command is used for the retrieval of the status of daemons running the hadoop cluster?

 366

What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?

 398

Is it necessary to know java to learn hadoop?

 370

Explain the use of .mecia class?

 489

What is the sequencefileinputformat in hadoop?

 431

What is the difference between hadoop and other data processing tools?

 403

Which data storage components are used by hadoop?

 356

Give the use of the bootstrap panel.

 379

What are the functionalities of jobtracker?

 383

Is it possible to provide multiple inputs to hadoop? If yes, explain.

 395

What are the network requirements for using hadoop?

 376

Un-Answered Questions { Big Data }

How do reducers communicate with each other?

372

Is JDBC driver enough to connect sqoop to the databases?

5

Explain what is a task tracker in hadoop?

221

What is the difference between an hdfs block and input split?

59

Explain the sequence of execution of all the components of MapReduce like a map, reduce, recordReader, split, combiner, partitioner, sort, shuffle.

377




Is Mapreduce Required For Impala? Will Impala Continue To Work As Expected If Mapreduce Is Stopped?

379

What rdd stands for?

192

what are the values stored in the cassandra column?

54

Explain about tablespace?

5

What is the use of map transformation?

209

Explain first() operation in Spark?

205

Explain what if rack 2 and datanode fails?

344

What is Hadoop Custom partitioner ?

724

How spark is used in hadoop?

194

What jobtracker is in hadoop? What are the activities followed by hadoop?

243

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